I agree with buzzman. if you are riding 50 miles a day, I wouldn't worry about eating right before sleep. After a 25 mile ride, I would think that you would want to immediately get some carbs to refuel and some protein to rebuild your muscles so you can ride the next day. Geez... you make me feel really out of shape.

As for eating healthy, quickly, the key is all in the prep work. If I had a super-duper-fancy rice cooker (or at least one with a timer) that would have the rice done by the time I get home and all the meats and veggies cut up and stuff, I would toss together a stir-fry in my wok in about 5-10 minutes. You can set up your schedule like that to come home, cook, eat, clean up, and prep the next day's meal while you digest a little, then go to bed.